Home / 87,410.40-131,158.80-49,999.20

Finding the Fourth Proportional to 87,410.40, 131,158.80 and 49,999.20

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Solution

The fourth proportional to 87,410.40, 131,158.80 and 49,999.20 is: 75,023.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,410.40 : 131,158.80 = 49,999.20 : x
  2. Step 2: Convert to fraction form
    87,410.40/131,158.80 = 49,999.20/x
  3. Step 3: Cross multiply
    87,410.40x = 131,158.80 × 49,999.20
  4. Step 4: Simplify right side
    87,410.40x = 6,557,835,072.96
  5. Step 5: Solve for x
    x = 6,557,835,072.96/87,410.40
  6. Step 6: Final answer
    x = 75,023.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.